Quoted from "Drew-k"

Could I to cut corners for the time being run 2 of those pumps off just the A5 LT's one connector?

Nope... You can't draw 36W out of a single channel. Technically you should be able to draw 18W per channel, but I'd recommend using the headers in opposite sides of the row (1 and 4 for instance). The heatsink attached to the AE5 LT would be highly recommedable too (not sure if the AE5 LT ships with heatsink these days, mine didn't), and some air flow (not a dedicated fan per se, just make sure that the heatsink can actually dissipate heat, rather than being buried under a rat's nest of cables in some remote bay inside the case).

Quoted from "Drew-k"

Does the PA2 come with the cable to connect the A5? (as I know the flow meter doesn't)

Not sure I follow... if you mean the Aquabus cable I don't believe so. However is just a 3 pin molex female-female cable (for the "low-speed Aquabus") and if my memory serves me well it comes with a "speed signal cable" (to connect the tacho output of the PA2 to a fan header in the MB for instance), I believe you could use that.

Quoted from "Drew-k"

What's the best way to connect all the fans to the 1 header?

Personally I made some custom PCBs (very simple task really, 3 pin headers are easy to source, so is stripboard) because fan splitter cables are an unholy mess, and the available splitter PCBs at the time were of really poor quality. However if the soldering iron is not your thing, splitter cables will do.

EDIT: This pic may illustrate what I meant... It uses a different header to power the fans because it was more convenient for me, the 3 pin header is actually the power feed, but I think you'll get the general idea.

I highly recomend getting the water block for theAquero 5 if you want to run the pumps and fans from the Aquero. You would best use fan 1 for second flow meter input, fan2 for pump 1, fan 3 for Typhoon Fans, fan 4 for second pump.

Un fortunatly this would result in running all fans at the same speed, and possiable heating problems if you run the pumps at 50% speed.

A less expensive option is to just run the pumps straight off the PSU with a 4 pin molex to 3 pin adapter. This means the pumps will be running at max speed with no input to Aquero 5 or control from it, but this allows splitting the fans into three groups controlled by the Aquero 5, and still have Fan1 connector free for a second flow meter, which would be a good idea to monitor the second pump loop. This would also allow for not useing the Aquero Water block. If I read the EK website information correctly, you can also power a pump from the Motherboard CPU Fan connector. This has the advantage of allowing the BIOS to control the pump speed and provide pump failure detection. I doubt the other Motherboard fan connectors can be used for the other pump, because most M.B. CPU fan headers are designed for high power CPU fans.

Frankly, I suggest getting the second flow meter installed from the start and connecting the pumps to the PSU at first, then switch them over to PA2's as money allows. And I would plan on a PA2 for each pump.



Yes, the PA2's are shipped with a 3 pin cable to connect the PA2 to the Aquero 5 Aquabus. But the cables are easy to find and not expensive.



Several web shops have various fan splitter cables. The key is to make sure that only ONE fan speed signal is sent to the Aquero Fan control header. Otherwise the speed signal gets confusing and eratic.